The MAGNECRAFT / SCHNEIDER ELECTRIC W199ADX-4 is a high-quality electromechanical relay designed for power applications. This 120VAC relay features a low resistance of 290 Ohms and a high current rating of 40A, making it perfect for industrial and commercial use. The single-pole, single-throw normally open configuration ensures reliable performance in demanding environments. With compact dimensions measuring 63.5x61.7x55.37mm, this power relay is a versatile and durable solution for a wide range of applications.